Explanation

Smoke is an example of a solid dispersed in a gas, where tiny solid particles are suspended in air.

This type of mixture is a colloidal solution known as an aerosol.

Explanation

مد کی دو قسمیں ہوتی ہیں

مد لازم: جب مد کا استعمال ضروری ہو اور اس میں اضافہ نہ کیا جا سکے۔

مد عارضی: جب مد کا استعمال عارضی طور پر کیا جائے، جیسے کسی کلمے کی تشدید یا وقف کے بعد۔

مد کے یہ دونوں اقسام تجوید کے اصولوں میں اہم کردار ادا کرتی ہیں۔

Explanation

The sentence is in simple present tense, used for general facts.

So the correct sentence is: "Cotton grows in America, Egypt and Pakistan."

Explanation

حضرت عمر بن عبد العزیز رحمہ اللہ 99 ہجری میں خلافت پر فائز ہوئے۔

آپ خلافتِ راشدہ کے بعد سب سے عادل اور نیک خلیفہ سمجھے جاتے ہیں۔ئ

Explanation

Given Ahmed's income is Rs. 85,000 and expenditure is Rs. 51,000:

The ratio of income to expenditure is 85,000 : 51,000.

To simplify, divide both parts by their greatest common divisor, which is 17,000:

85,000 / 17,000 = 5

51,000 / 17,000 = 3

So, the ratio is 5:3.

Explanation

The cordless power tools were developed during the Apollo missions to collect and study moon soil samples.

These tools helped astronauts drill into the lunar surface and bring back samples without power cords, making them more practical in space.

Explanation

Endosperm is the part of the seed that stores food to nourish the developing embryo.

It provides essential nutrients like starch, proteins, and oils during germination.

Explanation

In the last 100 years, the Earth's average temperature has risen by about 1°C due to human activities.

This increase is mainly linked to greenhouse gas emissions.

Explanation

"Told" is used in reported speech when giving instructions or advice, while "said" is typically used for general statements.

"Do" changes to "to do" in the reported speech form.

Explanation

Guidance refers to helping individuals make intelligent choices and adjustments in their lives.

It involves offering advice and support for personal and academic development.